Acquisitions - Pivot Onsite Innovations Acquisition Narrative (Details) $ in Thousands		3 Months Ended	4 Months Ended	9 Months Ended
	Jun. 01, 2025 USD ($) clinic state	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2025 USD ($) clinic	Dec. 31, 2024 USD ($)
Business Combination, Separately Recognized Transaction [Line Items]
Number of onsite health clinics | clinic	400			413
Goodwill		$ 1,482,885	$ 1,482,885	$ 1,482,885	$ 1,234,707
Pivot Onsite Innovations
Business Combination, Separately Recognized Transaction [Line Items]
Number of onsite health clinics | clinic	240
Number of states in which entity operates | state	40
Pivot Onsite Innovations Acquisition
Business Combination, Separately Recognized Transaction [Line Items]
Consideration given	$ 54,448
Cash paid to acquire business, available borrowing capacity	35,000
Goodwill	$ 34,502
Net revenues of acquiree		$ 16,600	$ 22,100